<template>
  <div class="dashboard-container">
    <div class="app-container">
      <!-- 添加按钮 -->
      <page-tools>
        <template slot="after">
          <el-button type="primary" size="small" @click="addPermission(1,'0')">添加权限</el-button>
        </template>
      </page-tools>
      <!-- 树表必须指定row.key为树形的唯一标识 -->
      <el-table :data="list" border row-key="id">
        <el-table-column align="center" label="名称" prop="name" />
        <el-table-column align="center" label="标识" prop="code" />
        <el-table-column align="center" label="描述" prop="description" />
        <el-table-column align="center" label="操作">
          <template v-slot="{row}">
            <el-button v-if="row.type===1" type="text" @click="addPermission(2,row.id)">添加</el-button>
            <el-button type="text" @click="editPermission(row.id)">编辑</el-button>
            <el-button type="text" @click="delPermission(row.id)">删除</el-button>
          </template>
        </el-table-column>
      </el-table>
      <el-dialog :visible="showDialog" :title="showText" @close="btnCancel">
        <el-form ref="formData" :model="formData" label-width="120px" :rules="rules">
          <el-form-item label="名称" style="width:90%" prop="name">
            <el-input v-model="formData.name" />
          </el-form-item>
          <el-form-item label="标识" style="width:90%" prop="code">
            <el-input v-model="formData.code" />
          </el-form-item>
          <el-form-item label="描述" style="width:90%">
            <el-input v-model="formData.description" />
          </el-form-item>
          <el-form-item label="开启" style="width:90%">
            <el-switch v-model="formData.enVisible" inactive-value="0" active-value="1" />
          </el-form-item>
        </el-form>
        <el-row slot="footer" type="flex" justify="center">
          <el-col :span="6">
            <el-button type="primary" size="small" @click="btnOk">确定</el-button>
            <el-button @click="btnCancel">取消</el-button>
          </el-col>
        </el-row>
      </el-dialog>
    </div>
  </div>
</template>

<script>
import { getPermissionList, delPermission, addPermission, updatePermission, getPermissionDetail } from '@/api/permission'
// 树形递归算法
import { tranListToTreeData } from '@/utils/index'
export default {
  data() {
    return {
      // 树表数据
      list: [],
      // 新增编辑对话框显示隐藏
      showDialog: false,
      // 添加新增表单数据
      formData: {
        name: '', // 名称
        code: '', // 标识
        description: '', // 描述
        type: '', // 类型 该类型 不需要显示 因为点击添加的时候已经知道类型了
        pid: '', // 因为做的是树 需要知道添加到哪个节点下了
        enVisible: '0' // 开启
      },
      rules: {
        name: [{ required: true, message: '权限名称不能为空', trigger: 'blur' }],
        code: [{ required: true, message: '权限标识不能为空', trigger: 'blur' }]
      }
    }
  },
  computed: {
    showText() {
      return this.formData.id ? '编辑权限' : '新增权限'
    }
  },
  created() {
    this.getPermissionList()
  },
  methods: {
    // 获取权限列表
    async getPermissionList() {
      this.list = tranListToTreeData(await getPermissionList(), '0')
    },
    // 删除权限
    delPermission(id) {
      this.$confirm('确认删除权限点吗').then(() => {
        return delPermission(id)
      }).then(() => {
        this.getPermissionList()
        this.$message.success('删除权限成功')
      })
    },
    // 打开添加权限
    addPermission(type, pid) {
      this.formData.type = type
      this.formData.pid = pid
      this.showDialog = true
    },
    // 添加权限
    async btnOk() {
      this.$refs.formData.validate().then(() => {
        if (this.formData.id) {
          return updatePermission(this.formData)
        }
        return addPermission(this.formData)
      }).then(() => {
        this.$message.success('新增权限成功')
        this.getPermissionList()
        this.showDialog = false
      })
    },
    // 编辑权限
    async editPermission(id) {
      this.formData = await getPermissionDetail(id)
      this.showDialog = true
    },
    // 取消按钮
    btnCancel() {
      this.formData = {
        name: '', // 名称
        code: '', // 标识
        description: '', // 描述
        type: '', // 类型 该类型 不需要显示 因为点击添加的时候已经知道类型了
        pid: '', // 因为做的是树 需要知道添加到哪个节点下了
        enVisible: '0' // 开启
      }
      this.$refs.formData.resetFields()
      this.showDialog = false
    }
  }

}
</script>

<style>

</style>
